ss -tulnp?ss = socket statistics.
It is used to display:
ss -tulnp
| Option | Meaning |
|---|---|
| -t | Show TCP sockets |
| -u | Show UDP sockets |
| -l | Show listening ports |
| -n | Show numeric (don’t resolve names) |
| -p | Show process using the port |
tcp LISTEN05110.0.0.0:4430.0.0.0:* users:(("nginx",pid=804254,fd=186))
Let’s explain each column.